/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraCommon.h
bool MatchesDefault ( const [FNiagaraVariableAttributeBinding](API\Plugins\Niagara\FNiagaraVariableAttributeBinding) & InOther, [ENiagaraRendererSourceDataMode](API\Plugins\Niagara\ENiagaraRendererSourceDataMode) InSourceMode ) const